Which control measure is suggested for ensuring a reduced amount of disturbed surface areas during active DGO?

• A. Delay site work until weather is favorable
• B. Pre-water site to depth of cuts
• C. Increase the number of workers on site
• D. Limit the number of vehicles on site

Answer: (B)

The suggested control measure of pre-watering the site to the depth of cuts is effective for minimizing dust generation during active dust-generating operations (DGO). By pre-watering, the soil becomes moistened, which helps to bind the particles and reduce the likelihood of dust being created as the surface is disturbed. This maintenance of moisture in the soil helps create a stable working surface, which is particularly important during excavation or grading activities where soil disturbances are significant.

Moistening the ground prior to operations can significantly decrease dust emissions, as dry and loose soil is more prone to being lifted into the air by winds or by activities such as vehicle movement and machinery operation. Therefore, implementing this practice can lead to safer, more compliant operations by minimizing health risks associated with airborne dust particles.

The other options, while they may present practical measures in some scenarios, do not directly address the specific goal of reducing disturbed surface areas during active DGO as effectively as pre-watering does. Delaying work based on weather conditions may hinder progress, increasing the time a site remains disturbed. Increasing the number of workers or vehicles may actually contribute to greater disturbance rather than minimizing it.